SE Electronics RF-X Reflexion Portable Microphone Vocal Booth FilterThe RF-X Reflection Filter from sE Electronics prevents unwanted audio ambience from contaminating your vocal tracks in untreated acoustic environments. This acoustic filter uses the same patented technology as the RF-Pro. Its lightweight body and clamp assembly makes the RF-X simple and easy to use.The RF-X is lighter than its predecessors but still maintains durability. It features a four-layer acoustic filter design comprising the outer composite panel itself a wool fabric layer an air gap layer and an inner acoustic foam layer. The air gap ensures that recordings exhibit almost no sound coloration when the RF-X filter is used.The RF-X clamp assembly s lightweight design can be used on almost any microphone stand. It allows vertical mounting only making it ideal for vocal recording.